Quote:
Originally Posted by tinypanzer
Sounds like you did a pretty decent test of the CCU, the blower speeds and temp change behavior is correct as you noted.
So - You are getting good heat, just not in that short a drive, correct? If you drive further, you get good heat?
Perhaps the aux coolant pump is dead, if your car has one.
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Thanks!
Yes, if I drive further, I get good heat. My car does have an aux pump, but the heat stays just as hot letting it idle in park for a few minutes, so I don't think it's that.
Quote:
Originally Posted by LarryBible
I'm sure you know that a torn monovalve diaphragm will cause more heat than you want, not less.
I'm also sure that it has already occurred to you that you could have a bad thermostat. I'm not sure how the V8 thermostat is arranged, but I fully expect that it has a bypass as the other engines do. I have had a few thermostats fail open, or in some cases not closed fully. If you haven't replaced the thermostat in a long time, it might not be a bad idea given that it is an inexpensive item.
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Yes, and yes, but see above. If it didn't close fully, I'd be able to feel hot coolant in the radiator hose. If it was stuck open, the engine coolant wouldn't reach operating temp by the time I got to work. Like I said, the temp gauge shows the stat opening, and this is verified by hot air coming off of the radiator once it does...
I drove my truck to work today, and I also did not have heat by the time I got to work, so I'm guessing it's just the short, straight trip.
Quote:
Originally Posted by compress ignite
Set it to start warming 3 hours before you leave...
Toasty hot Air as soon as you turn the key.
Short drives where the engine doesn't reach OP temp are horrible for the engine!
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Is a block heater standard equipment? I live in South Texas, where it might freeze 10 days out of the year. IIRC, last Christmas it was around 55-60F, and I think the last time it snowed was in 1986.
The coolant inside the block does get up to operating temp by the time I get to work, though barely - pretty much right at or slightly below 80C. Of course, I run an ACEA approved full synthetic, so short trips aren't as bad for it as they could be.
I'm parking it for a while anyway. It sat for 2 years so I just wanted to put a tank of gas through it before I started tearing into the windows, A/C, vent pods, front end, brakes, engine, etc...